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首页> 外文会议>International conference on soil mechanics and geotechnical engineering;ICSMGE >Investigation on mechanism of grouting and engineering characteristics of in-situ grouted soils
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Investigation on mechanism of grouting and engineering characteristics of in-situ grouted soils

机译：现场灌浆土的灌浆机理及工程特性研究

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Soil grouting is generally adopted to enhance engineering properties of soil deposits by introducing cohesive agents into the ground. The effectiveness of the technique, however, is influenced by various factors, and relies upon a substantial portion of on-site experience and engineering judgment. Major uncertainties in grouting appear to be the actual mechanism of injection and the performance of the grouted ground. Although several attempts have been made in the past, results of related studies on the injection mechanism are generally not conclusive and the improvement of grouting on engineering properties of soils can not be practically quantified. The study herein discusses an examination on the injection mechanism, through an in-situ grouting program and the subsequent excavation. Various types of grout were introduced into different soil layers of the ground, with controlled injection pressure and volume. Field mapping and laboratory testing of the grouted soils were carried out. A numerical simulation of the grouting process was also performed and discussed for clarification of the observed mechanism.
机译：通常通过将胶凝剂引入地下来进行土壤灌浆，以增强土壤沉积物的工程性能。然而，该技术的有效性受多种因素影响，并且依赖于现场经验和工程判断的很大一部分。灌浆的主要不确定因素似乎是实际的注入机理和灌浆地面的性能。尽管过去已经进行了几次尝试，但是有关注入机理的相关研究结果通常不是结论性的，并且灌浆对土壤工程特性的改善尚无法在实践中量化。本文的研究讨论了通过现场灌浆程序和随后的挖掘对注入机理的检查。将各种类型的灌浆引入到地面的不同土壤层中，并控制注入压力和体积。进行了灌浆土壤的现场制图和实验室测试。还进行了注浆过程的数值模拟，并进行了讨论，以阐明所观察到的机理。

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